813192007 has 2 divisors, whose sum is σ = 813192008. Its totient is φ = 813192006.

The previous prime is 813191999. The next prime is 813192013. The reversal of 813192007 is 700291318.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 813192007 - 2³ = 813191999 is a prime.

It is a super-2 number, since 2×813192007² = 1322562480497376098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 813192007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (813192047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406596003 + 406596004.

It is an arithmetic number, because the mean of its divisors is an integer number (406596004).

Almost surely, 2^813192007 is an apocalyptic number.

813192007 is a deficient number, since it is larger than the sum of its proper divisors (1).

813192007 is an equidigital number, since it uses as much as digits as its factorization.

813192007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 813192007 is about 28516.5216497384. The cubic root of 813192007 is about 933.3926292968.

The spelling of 813192007 in words is "eight hundred thirteen million, one hundred ninety-two thousand, seven".